Ring-spinning apparatus.



A No. 741,717;

' PATENTED- OUT. 20, 1903- v G. 0 DRAPER. RING SPINNING APPARATUS.

, I APPLICATION FILE-D; A;15,B.'29{1903 isomonnn.

inn

it... w s

UNITED STATES iatented October 20, 190s.

PATENT OFFICE.

GEORGE OTIS DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TC) DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORA- TION OF MAINE.

RING-SPINNING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 741,777, dated October 20, 1903. Application filed April 29, 1903. Serial'No. 154,755. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE ()rrrs DRAPER, a citizen of the United States, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Ring-Spinning Apparatus, of which the following description, in connection with the ac companying drawings, is a specification, like characters onthc drawings representing like parts.

This invention relates to high-speed yarn spinning or twisting apparatus of the type wherein the annular traveler support or ring is arranged to rotate when the spindle is in motion at a high rate of speed, the ring at such time being free to yield in any direction under unbalanced strains, the rotation of the ring obviating destructive heating of the traveler by frictional engagement therewith.

At the present time great numbers of rings are in use in the fixed-ring type of spinning and twisting apparatus; and one of the objeots of my present invention is the production of means for utilizing a well-known form of ring in apparatus of the revolving type.

Various other novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a vertical diametrical section on the line 1 1, Fig. 2, of a yarn spinning or twisting apparatus embodying one practical form of my invention, a portion of the ringrail, spindle, and bobbin being shown in elevation. Fig. 2 is a plan View, partly broken out, of the revolving ring and the cooperating parts, the bobbin and spindle being omitted. Fig. 3 is a view similar to Fig. 1 on the line 3 3, Fig. 4, of a modified form of my invention; and Fig. 4 is a plan view, partly broken out, of the device shown in Fig. 3.

In Figs. 1 and 3 the reciprocating ring-rail R spindle S of any suitable high-speed type and actuated by usual means, (not shown,) and the removable bobbin B, on which the yarn is wound, may be and are all of. any usual or well-known construction, the spindle and bobbin extending through a circular aperture 3 in the ring-rail.

Referring to Fig. 1, the ring R is of a well known pattern in extensive use on the fixedring type of spinning and twisting apparatus, the ring having upper and lower flanges r and r, the traveler t cooperating with the upper flange in the usual manner. I have provided a spring-clamp holder for the rin g, said holder in one embodiment of my invention com prising a cylindrical body h, provided with a plurality of longitudinal slits 77%, extending from its upper edge part waytoward the bottom of the body. (See Fig. 1.) An external annular groove h is made in the body near its top, the latter being shown as externally rounded in Fig. 1, and the ring is snapped onto the holder, the inner edge of the flange 1" entering the groove h and being heldtherein by the spring action of the body. The base of the body is provided with a lateral external flange or lip 71 constituting aball-raceway, and preferably the top face of the flange is upwardly and outwardly beveled, as at 71 so that the balls b normally rest in the position shown in Fig. 1. Surrounding and concentric with the holder I mount a relatively stationary bearing or confining member 0 upon the ring-rail, and, as herein shown, said member is attached to the rail by retaining-screws 5. This outer member 0 has an upturned annular portion 0, which partly overhangs the raceway 71, and has a frusto'conical bearingsurface c projecting over and at a consider able distance above the series of balls b when the ring and its holder are at rest.

By referring to Fig. 1 it will be manifest that the ring and its holder may have a limited radial and vertical movement relative to the member 0, the overhanging part a thereof serving to limit such movements and confine the holder within proper bounds. Until the spindle speed is high enough to cause rotative movement of the ring R the series of balls is at rest; but when the ring is revolving, as in the rotary-ring type of apparatus, the balls are thrown outward by centrifugal force and impinge upon the bearing-surface e A yielding ball-bearing is thus provided, the balls accommodating themselves to the speed of rotation of the holder, so that whenever such speed is great enough the balls will roll up the inclined bottom h of the raceway and contact with it and with the bearing-surface c While I have termed the member 0, which has the bearing-surface 0 as a stationary member, and have shown it as fixedly secured to the ring-rail, I do not restrict myself to such fixed mode of attachment, as the confining member or shell may be mounted yieldingly on the ring-rail, following the practice in some forms of rotary-ring apparatus.

In the modified form of myinventionshown in Figs. 3 and 4 the usual ring R, having upper and lower flanges r and 1", is used, and also the confining or stationary bearing member 0, having a frusto-conical bearing-surface c as has been described. A different form ofring-holder is employed, however, and it is shown as a second ring M, practically a duplicate of the ring R, the lower flange r of the latter being secured to the upper flange m of the ring M in any suitable manner, as by brazing, soldering, &c. The lower flange m of the holder M supports a split ring 19, snapped around the web of the holder and having an upwardly and outwardly beveled face 1?, said split ring constituting a raceway for the series of balls b This raceway is thus substantially like the raceway 7L2, heretofore described, and in both of the embodiments of my invention it will be manifest that the series of balls are carried with the revolving ring, and so far as I am aware this feature is broadly new. The base of the holder in either case rests upon the top of the ring-rail when the ring and holder are at rest, as shown in Figs. 1 and 3 of the drawings. I

From the foregoing description it will be manifest that awell-oknown form of spinningring can be utilized in a revolving-ring type of apparatus with no change in the structure of the ring itself, and this is one of the important features of my invention.

My invention is not restricted to the precise construction and arrangement herein shown and described, as the same may be varied or rearranged in different particulars by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a rotatable ring capable of radial and vertical movement, and having an attached, annular raceway, of a series of balls mounted thereon, and a surrounding, relatively stationary bearing member against which the balls may impinge.

2. The combination with a spinning-ring having upper and lower flanges, and a traveler cooperating with the upper flange, of a rotatable holder capable of radial and vertical movement and attached to the lower flange of the ring, and a bearing for the holder, includinga series of balls carried by said holder.

3. The combination with a rotatable ring capable of radial and vertical movement, of a series of balls carried therewith, and a relatively stationary bearing-surface against which the balls are made to impinge by centrifugal force.

4. The combination with a rotatable ring, of a bearing therefor including a series of balls and a relatively stationary bearing-surface against which the balls impinge by centrifu gal force.

5. The combination with a rotatable ring capable of radial and vertical movement, of a ball-raceway rotatable therewith, a concentrio, relatively stationary raceway, and a series of balls interposed between said race- Ways and vertically supported wholly by the rotatable raceway.

6. The combination of a spinning-ring having upperand lower flanges, a re voluble holder with which the ring is connected, a ball-raceway on the holder, a series of balls carried by the raceway, and a concentric and relatively stationary bearing-surface against which the balls are directed by centrifugal force.

7. The combination of a spinning-ring hav ingupper and lower flanges, a revoluble holder therefor having an external, annular raceway near its lower end, balls carried by said raceway, and a concentric, relatively stationary bearing-surface against which the balls are directed by centrifugal force.

8. The combination with a rotatable ring capable of radial and vertical movement, of an external annular raceway carried therewith, balls supported by said raceway, and a concentric, relatively stationary bearingsurface overhanging said raceway and with which the balls cooperate when thrown outward bycentrifugal force.

9. The combination with a rotatable ring capable of radial and vertical movement, of a yielding bearing thereforincluding a series of balls bodily rotatable with the ring and controlled by centrifugal force.

10. The combination with a rotatable ring capable of radial and verticalmovement, of an external, annular raceway movable therewith and having an upwardly and outwardly beveled bottom, a series of balls carried upon the raceway, and a relatively stationary bearing-surface surrounding the raceway, the balls being directed against said bearing-surface by centrifugal force.

11. The combination of a spinningring having upper and lower flanges, a revoluble holder for the ring, detachably connected with the lower flange thereof and having an external raceway, a surrounding and relatively stationary bearing-surface, and a series of ballsrcarried by the raceway and adapted to cooperate with the bearing-surface and form a yielding bearing for the ring-holder.

12. The combination with a rotatable ring capable of radial and vertical movement, and an external annular raceway movable with the ring, of a series of balls mounted on the raceway, and a surrounding, relatively sta- In testimony whereof I have signed my tionary confining member having a bearingname to this specification in the presence of surface for the balls overhanging the latter, two subscribing Witnesses.

said memberlimitingradial and upward move- GEORGE OTIS DR APER; 5 ment of the ring and cooperating with the Witnesses:

balls when the latter are thrown outward by E. D. BANCROFT,

centrifugal force. ERNEST W. WOOD. 

